This guide is about modernist fine art, though many of the suggestions will also be relevant to the study of modernist design.

Summon is usually the best starting point for finding articles, books and dissertations. 

• video intro to Summon (4 mins) 
• collection of guides if you need help with particular Summon searches

You may also want to run supplementary searches in these databases:

• Art & Architecture Source
• Google Scholar: an alternative to Summon
  • info about using Scholar 
  • video intro to Scholar (3 mins)

For introductory articles:

• Oxford Art Online: its components, Grove Art Online and the Benezit Dictionary of Artists can be searched separately or together
• Concise Oxford Dictionary of Art Terms for definitions. Note: running a search will also retrieve results from other Oxford reference works

Black Artists & Modernism presents an introduction to British modernists of African or Asian descent.

Some resources focussing on women artists:

• AWARE database of women artists born between 1860 and 1972
• Bow Down: Women in Art History  podcast from Frieze magazine including many European women artists from this period
• Great Women Artists Podcast  covers many artists from this period
• National Museum of Women in the Arts US museum
• Women and Art Tate Gallery webpage
• Women in the Visual Arts introductory article from Oxford Art Online, with links to many more detailed articles from Oxford
• see also the feminist approaches page for more possibilities